A space consists of a number of components whose display properties can be determined by the materials assigned to each component.
When you assign materials to a space style, you assign one material to each physical component of the space. For example, you assign a wood material to the floor and a ceiling tile material to the ceiling.
If you want to use the display properties of the space style, you can turn off the material assignments in the display properties of the space style.
Material definitions consist of display components that correspond to component types of objects. For example, the Linework component of a material is used for all linework in plan view. The Surface Hatch component is used to hatch all object surfaces in 3 dimensional (3D) model views and in elevations.